Obviously I do not mind cleaning up images.

I would surely agree that the decision is 100% personal and I have always urged that folks let everyone know what they did, i.e., full disclosure.
There is however one important point that folks often miss: once you remove a single blemish from the background of your image, be it a tiny black piece of plastic on an otherwise pristine white sand beach, you have stepped onto the slippery slope and therefore lose all right to criticize others who might clean up their images more aggressively than you do. (The you here is the collective you and my remarks are not at all directed at you.) If folks are gonna play God they need to be consistent.
